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<?php
namespace Model;
use Event\CommentEvent;
use SimpleValidator\Validator;
use SimpleValidator\Validators;
/**
* Comment model
*
* @package model
* @author Frederic Guillot
*/
class Comment extends Base
{
/**
* SQL table name
*
* @var string
*/
const TABLE = 'comments';
/**
* Events
*
* @var string
*/
const EVENT_UPDATE = 'comment.update';
const EVENT_CREATE = 'comment.create';
/**
* Get all comments for a given task
*
* @access public
* @param integer $task_id Task id
* @return array
*/
public function getAll($task_id)
{
return $this->db
->table(self::TABLE)
->columns(
self::TABLE.'.id',
self::TABLE.'.date_creation',
self::TABLE.'.task_id',
self::TABLE.'.user_id',
self::TABLE.'.comment',
User::TABLE.'.username',
User::TABLE.'.name',
User::TABLE.'.email'
)
->join(User::TABLE, 'id', 'user_id')
->orderBy(self::TABLE.'.date_creation', 'ASC')
->eq(self::TABLE.'.task_id', $task_id)
->findAll();
}
/**
* Get a comment
*
* @access public
* @param integer $comment_id Comment id
* @return array
*/
public function getById($comment_id)
{
return $this->db
->table(self::TABLE)
->columns(
self::TABLE.'.id',
self::TABLE.'.task_id',
self::TABLE.'.user_id',
self::TABLE.'.date_creation',
self::TABLE.'.comment',
User::TABLE.'.username',
User::TABLE.'.name'
)
->join(User::TABLE, 'id', 'user_id')
->eq(self::TABLE.'.id', $comment_id)
->findOne();
}
/**
* Get the number of comments for a given task
*
* @access public
* @param integer $task_id Task id
* @return integer
*/
public function count($task_id)
{
return $this->db
->table(self::TABLE)
->eq(self::TABLE.'.task_id', $task_id)
->count();
}
/**
* Create a new comment
*
* @access public
* @param array $values Form values
* @return boolean|integer
*/
public function create(array $values)
{
$values['date_creation'] = time();
$comment_id = $this->persist(self::TABLE, $values);
if ($comment_id) {
$this->container['dispatcher']->dispatch(self::EVENT_CREATE, new CommentEvent(array('id' => $comment_id) + $values));
}
return $comment_id;
}
/**
* Update a comment in the database
*
* @access public
* @param array $values Form values
* @return boolean
*/
public function update(array $values)
{
$result = $this->db
->table(self::TABLE)
->eq('id', $values['id'])
->update(array('comment' => $values['comment']));
if ($result) {
$this->container['dispatcher']->dispatch(self::EVENT_UPDATE, new CommentEvent($values));
}
return $result;
}
/**
* Remove a comment
*
* @access public
* @param integer $comment_id Comment id
* @return boolean
*/
public function remove($comment_id)
{
return $this->db->table(self::TABLE)->eq('id', $comment_id)->remove();
}
/**
* Validate comment creation
*
* @access public
* @param array $values Required parameters to save an action
* @return array $valid, $errors [0] = Success or not, [1] = List of errors
*/
public function validateCreation(array $values)
{
$rules = array(
new Validators\Required('task_id', t('This value is required')),
);
$v = new Validator($values, array_merge($rules, $this->commonValidationRules()));
return array(
$v->execute(),
$v->getErrors()
);
}
/**
* Validate comment modification
*
* @access public
* @param array $values Required parameters to save an action
* @return array $valid, $errors [0] = Success or not, [1] = List of errors
*/
public function validateModification(array $values)
{
$rules = array(
new Validators\Required('id', t('This value is required')),
);
$v = new Validator($values, array_merge($rules, $this->commonValidationRules()));
return array(
$v->execute(),
$v->getErrors()
);
}
/**
* Common validation rules
*
* @access private
* @return array
*/
private function commonValidationRules()
{
return array(
new Validators\Integer('id', t('This value must be an integer')),
new Validators\Integer('task_id', t('This value must be an integer')),
new Validators\Integer('user_id', t('This value must be an integer')),
new Validators\Required('comment', t('Comment is required'))
);
}
}
|
